Cosmology with High-Redshift Type Ia Supernovae

Details Cosmology with High-Redshift Type Ia Supernovae Cosmology with High-Redshift Type Ia Supernovae

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001noao.prop..248p&link_type=abstract

NOAO Proposal ID #2001A-0248

Physics

Scientific paper

The current Type Ia supernova Hubble diagram and CMB observations argue for a flat universe with some form of ``dark energy'' accelerating its expansion. Studies of distant supernovae can probe the expansion history of the universe through our current dark-energy-dominated era back to a matter-dominated era, making them one of the best current methods to study the amount and nature of such dark energy. The CTIO 4-m telescope will reach back in time to find supernovae when the universe was still matter-dominated, extending our understanding of the expansion of the universe and possible evolution of supernovae over time (for which we will use several different tests). The WIYN-SYN telescope will allow us to photometrically follow-up a selection of these supernovae to measure the brightness of these standard candles as a function of redshift. The Gemini NIRI will allow us to obtain crucial data for the very highest-redshift (z ≳ 1) supernova whose rest-frame V-band will have been redshifted to our J- band.

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